Patents for Hall Manufacturing Co. |
Patents 31 -
45
of 57
|
Number | Date | Patentee | Title | Type |
1,931,986 | Oct. 24, 1933 | W.E. Heuer | Cylinder Hone | honing tools |
1,938,330 | Dec. 05, 1933 | E.A. Hall | Suction Nozzle for Valve-Seat Grinders | valve reseating machines |
1,941,837 | Jan. 02, 1934 | W.E. Heuer | Device for Adjusting Cylinder Hones and the Like | honing tools |
1,941,918 | Jan. 02, 1934 | E.F. Schwakopf | Valve Grinding Machine | valve reseating machines |
GB-407,186 | Mar. 15, 1934 | H.M. Co. | Improvements in Valve Seat Grinding Tools | valve reseating tools |
1,955,182 | Apr. 17, 1934 | E.A. Hall | Suction Device for Cylinder Boring Machines | dust collectors |
1,955,183 | Apr. 17, 1934 | E.A. Hall | Tool Balancing Means | valve grinding tools |
2,010,759 | Aug. 06, 1935 | E.A. Hall | Pilot Stem | valve grinding tools |
2,042,782 | Jun. 02, 1936 | E.A. Hall | Dust Removing Means for Valve Seat Grinders or the Like | dust collectors |
2,042,783 | Jun. 02, 1936 | E.A. Hall | Adjusting Means for Sleeve Bearings | industrial machine bearings |
DE-634,784 | Sep. 03, 1936 | H.M. Co. | Suction Device for Removing Cuttings in Cylinder Boring Machines | cylinder maintenance |
DE-641,899 | Feb. 17, 1937 | H.M. Co. | Valve Seat Grinding Machine With Centering Rod | valve and seat maintenance |
2,092,117 | Sep. 07, 1937 | E.A. Hall | Valve Facing Means | valve reseating machines |
2,116,498 | May 10, 1938 | E.A. Hall | Grinding Machine | valve grinding tools |
CA-378,556 | Dec. 27, 1938 | E.A. Hall | Grinding Machine | valve and seat maintenance |